Recorder for facsimile systems



June 24, 1930. R. H. RANGER 3,755,443

RECORDER FOR FACSIMILE SYSTEMS Filed Dec. 19, 1928 avwmtoz R. H. RANGERways wm j f mw Patented June 24', E930 NITED STATES erasure eArENr oFicE RICHARD HO'WLAND RANGER, OF NEWARK, NEW JERSEY, ASSIGNOR TO RADIOCORIQ' JA'IION OF AMERICA, A CORPORATION OF DELAWARE RECORDER FORFACSIMILE SYSTEMS Original application filed August 12, 1926, Serial No.128,720. Divided and this application filed December The presentinvention relates to a recording system and means for use in connectionwith facsimile apparatus and the like in which the recording action is,what has become known in the art as pyro recording, this term beingapplied toa system for recording electrical impulses by translating theminto heat and then applying the resulting heat pulses to a heatsensitive paper.

The present application forms a divisional part of my copendingapplication, Serial No. 128,720, filed on August 12, 1926.

Similar to the parent application, the sys tem herein disclosed hasparticular reference to recording by means of .a heated jet of air, gas,or fluid projected upon a chemically treated heat sensitive paper of thecharacter, for example, disclosed by my copending application which wasfiled jointly with Richard Stuart Bicknell, Serial No. 303,108 on August31, 1928, or, for example, a paper of the character disclosed in my-co-pending application filed jointly with Francis- G. Morehouse onDecember 7, 1928, as Serial No. 324,421, or, if desired, the system maybe used in connection with any other appro priate form and type ofrecording mediums which will respond to an application of heat toproduce a pictorial or even non-pictorial record.

While the application here, as in the parent case, is directedparticularly to the recording of pictures, it is to be understood, thatI intend to use the word pictures in a generic sense and include therebyall printed matter which is capable of being viewed by the optic sensesand may include therein, pictures, newspaper articles, checks,documents, aflidavits, finger printsffashion plates, magazine covers,views, blueprints, financial statements, and, in fact, all types ofprinted matter. 7

An object of this invention is, therefore, to provide a system and meansfor supplying or projecting heat to or against a heat sensitiverecording surfaceand, at the same time, to I provide a novel andeflicient means for controlling the amount of heat which is directed 60against the recordingsurface.

Serial No. 327,009.

Other objects of this invention will at once suggest themselves by areading of the specification and claims in connection with theaccompanying drawings although, it is to be understood, that it is, ofcourse, among the objects of this invention to provide a system wherebyrecording action may be produced easily by the aid of a. recording meansof the rcharactcr described in which there is high efliciency,durability, convenient operation, compactness, substantial fool-proofoperation, and minimum installation expense.

The single figure of the drawing illustrates a schematic embodimentwhich my invention may assume although, it is to be understood, thatvarious modifications and changes may be made in the apparatus disclosedin so far as these changes fall fairly within the spirit and scope ofthe invention as defined by the hereinafter appended claims.

Now, to refer specially to the accompanying drawing, air, or other.appropriate gas or fluid, may be supplied from an external source (notshown) to an inlet tube 1 of a nozzle system, generally designated A.The nozzle A is provided at one end thereofopposite -tion 3, being ofvery small diameter tends to project the medium at a relatively highvelocity against the recording surface 5.

The recording surface 5 which is to be subjected to the action of thejet of air, gas, or

other appropriate fluid from the nozzle 3 is carried and supported bythe supporting surface 7 which is preferably in the form of a drum andwhich may rotate continuously with respect to the jet 3 and advancerelatively thereto in a spiral path, or which may be so associated withthe jet that the jet is arranged to trace a path longitudinally of thesupporting drum and at the end of each longitudinal stroke of the jetwith respect thereto the drum 7 will be rotated or advanced in thedirection of the arrow an amount equal to one line advance of thepicture. The line advance may be of any desired and chosen amount,depending upon the amount of detail desired. As a suitable amount ofadvance 1/80 of an inch on the circumference has been found to be quitesuitable for providing sufficient detail for all practicalpurposes,-although other line advances may be used where desired. 4

Surrounding the jet A at a point near the take-in tube 1 I have providedtwo clamping rings 9 and 11 to which conductors 13 and 15 respectivelyare connected. Energy is supplied to the conductors from an externalsource (not shown) which may, if desired, be a battery. By connectingheated coils 14, of the general character shown and described inconnection with Figs. 1 and 2 of the parent application, of which thisforms a divisional part, with'conductors 13 and 15, th air, fluid, orgas, flowing through the nozzle system may be appropriately heated tothe desired temperature for recording. As in the parent case, theheating coils 14 may consist of the usual wrapping of a fine conductorabout the tube carrying the recording medium within .the nozzle and soarranged as to heat the medium as it flows therethrough.

In order to confine as much heat as possible within the nozzle A andthus heat the recording medium to a higher degree of temperature I haveprovided an asbestos coating 17 about the nozzle A and may secure thiscoating thereto by an appropriate method, for instance, by clampingrings or wires 19.

The entire nozzle portion AF-ispreferabl supported by means of aslidable frame wor c 21 upon a plate member 23 carried by a U- shapedsupporting member 25. The entire nozzle may be adjusted vertical withrespect to its support bracket by turning the thumb screw 26 andadjusted horizontally with respect to the same support and the recordingsurface 5 by means of the thumb screws 27 and 29, which are so arrangedthat upon being loosened they ma provide through a slot portion 28 aslidab e movement for the nozzle.

Carried by the U-shaped supporting braeket 25 I have provided atelephone receiver 31 which is supplied With energy through conductors33 and 35. These conductors 33 and 35 are in turn connected with areceiving sys tem of any desired type, for instance, of the typeclaimedand described in my copending applications Serial No. 615,175, filedvFebruary 16, 1924, and Serial No. 759,514, filed November 18, 1924. Ifdesired, any other a propriate type of receiving systems may be used andso arranged as to have the output energy therefrom supplied to theconductors associated with the receiver 31.

A thin rod 37 is attached to the diaphragm 39 of the telephone receiverat a point 41, for example, and vibrations in the receiver produced inaccordance with variations in the strength of signals supplied theretofrom the receiving system will cause the rod 37 to move up and down aproportionate amount in a well known manner. The rod 37 at its upper end43 is pivotally connected witha pivot rod 45 pivoted at a point 47closely adjacent to the point of connection 43 with the rod 37, so thatthe end of the rod 45 remote from the rod 37 will have translatedthereto a proportionately large displacement due to a slight movement ofthe diaphragm 39.

Connected to the end 49 in a pivotal mannor is a shutter 51, which issupported by the guides 53 and 55, respectively, so that upon a movementof the diaphragm 39 up and down in accordance with the received signalsthe shutter 51 will slide in the guides and likewise move up and down.The motion of the shutter will, by the manner of linking the actuatingrods, be much greater than that of the diaphragm 39.

The shutter 51 is provided with an orifice 57 which, under normalconditions is directly in front of the opening in the jet 3 throughwhich the air, gas or other fluid, is projected, so that this recordingmedium may then be directly passed therethrough toward the recordingsurface 5. However, when signals are received so as to move thediaphragm of the receiving telephone 31 up and down this motion istranslated to the shutter system 51 and the latter will also move up anddown and prevent the heated recording medium from striking the recordingsurface 5 and thus will permit the making of marks on the recordingsurface which corresponds to, or closel approximate, a transmittedpicture or the li e.

In order to prevent the recording medium, projected from the jet 3through the orifice 57 in the shutter 51, from spreading over a largearea of the recording surface I have provided a means to confine theheat from the jet to a small differential section of the recordingmedium, which may, for example, be an L-shaped standard 59 positionedbetween the recording surface 5 the shutter 51. This L-shaped standard59 is supported rigidly with res ect to the support 23 for the nozzlesystem in any desired manner. In this standard 59 I have providedanorifice 61 which will serve as a diaphragm and determine the area overwhich the recording medium from the jet 3 may be distributed. If

desired, this opening or orifice 61 may be formed so as to be adjustableas regards its size, although for convenience of illustration thisarrangement has not herein been illustrated.

While the system has herein been illustrated and described as consistingof a shutter mechanism which moves up and down with tion of thisinvention to provide a shutter control system in which the shutter isnot regulated as to its up and down movement with respect to the jet.Such a system may be provided by pivotally mounting the shutter at afixed height with respect to the jet and arranging the same so as totilt or oscillate with respect to the jet 3, and thus control the flowof the recording medium from the jet in any desired or appropriatemanner. This "may be accomplished, for example, by providing a system ofbell-crank levers operable from the diaphragm member 39, and still fallwithin the spirit and scope of this invention.

Having now described my invention, what I claim and desire to secure byLetters Patentis: I 7 v 1. An arrangement for recordingpicturescomprising a rotatable drum support for carrying a heat sensitiverecording medium, means for projecting a heated recording fluid uponsaid support for producing a record thereon, means for controlling theamount of said heated recording fluid directed to said recordingsurface, said control means including a shutter and a diaphragmassociated therewith whereby the said shutter is moved toward and awayfrom the point of projecting said recording medium in proportion to thestrength of signal-impulses reaching and influencing said diaphragm.

2. -An arrangement for recording pictures comprising a rotatable drumsupport for carrying a recording sheet having a heat 'reduceablemetallic compound coating thereon, meansfor directing a hot air blastagainst said sheet for producing a chemical change to the body thereof,and means for controlling the amount of heat from said air blast whichreaches said sheet, said control means including a shutter and atelephone diaphragm conthe fluid within said recorder, means forprojecting the said heated fluid against said support, and a shuttermeans operable in accordance with the strength of received signals forcontrolling the amount of said heated fluid directed against saidsupport surface.

4. In a recording system for pictures and the like, a nozzle system, asupport for carrying a heat sensitive recording surface, means formoving the nozzle and said support, relatively to each other, means forintroducing into said nozzle system a recording medium, means forheating said recordingmedium within said nozzle, means for projectingsaid heated recording medium from said nozzle toward said support, and ashutter means operable in accordance with received signals forcontrolling the amount of said recording medium projected from saidnozzle to said support surface. I I

5. In a facsimile recording system, a nozzle system, means for supplyinga recording fluid thereto, means for heating said recording fluid withinsaid nozzle, means for projecting the said heated recording fluid fromsaid nozzle, a support surface adjacent said nozzle for supporting aheat sensitive recording medium, and a shutter means having an openingtherein positioned between said nozzleand said support for controllingthe amount of heated recording medium directed from said nozzle to saidsupport in accordance with received signalling impulses.

6. In a recording system for pictures and the like, a nozzle system,means for supplying a recording fluid thereto, means for heating saidrecording fluid, means for projecting said heated recording fluid fromsaid nozzle system, a support surface for carrying a heat sensitiverecording surface adjacent to said nozzle, means forobtaining a relativemovement between said nozzle and said support surface whereby therecording action is produced over substantially the entire recordingsurface carriedby said support, and a shutter system interposed betwensaid nozzle and said support for controlling the amount of heatedfluidprojected from said nozzle to said support.

7. In a recording system for facsimiles, a support surface, means forprojecting a heated gaseous blast against said support and normally withrespect thereto, a shutter means interposed between said projectingmeans and said support surface for regulating the amount of said heatedgaseous blast projected against said support surface, and a link systemoperable in accordance with received signal pulses for controlling saidshutter means.

8. In a recording system for pictures and the like, a support surfacefor supporting a heat sensitive recording surface, means for projectinga heated air blast normally with respect to said support, means formoving said projecting means vertically and horizontally for adjustingthe same with respect to said support, means for obtaining a relativemovement between said support and said projecting means, and a shuttermeans intersaid heated air may be projected on said support surface.

10. An arrangement for recording PlCLUI'OS comprising a rotatable drumsupport for carrying a heat sensitive record surface, means forprojecting a heated recording fluid upon said support for producingthereon a record of received pictures, and a shutter means forcontrolling the amount of said heated recording fluid reaching saidrecording surface.

11. An ar 'angement for recording pictures and the like including aheated recording system, a support adjacent thereto for carrying a heatsensitive recording surface, means for projecting the said heated fluidagainst said support, and a shutter means operable in accordance withthe strength of received signals for controlling the amount of saidheated fluid directed against said support surface.

12, In a recording system for pictures and the like, a nozzle system, asupport for carrying a heat sensitive recording surface, means formoving the nozzle and said support relatively to each other, means forintroducing into said nozzle system a recording medium, means forheating said recording medium, means for projecting said heatedrecording medium from said nozzle toward said support, and a shuttermeans positioned between said nozzle and said support for controlling inaccordance with received signal pulses the amount of said recordingmedium rojected from said nozzle which reaches said support surface.

13. In a recording system for pictures and the like, a support surfacefor carrying a heat sensitive recording medium, means for projecting aheated recording fluid normally with respect to said support surface,means for obtaining a relative movement between said support surface andsaid fluid projecting means, and a shutter positioned between said fiuidprojecting means and said support surface for controlling the amount ofheated recording fluid projecting against said support surface.

14. In a recording system for facsimiles, a support surface, means forprojecting a heated gaseous blast against said support and normally withrespect thereto, and a shutter means interposed between said projectingmeans and said support surface for regulating the amount of said heatedgaseous blast projected against said support surface in accordance withreceived signal pulses.

RICHARD HOWLAND RANGER.

